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WORKPLACE EXPOSURE - Hazardous Substances Welding Wood Lead Isocyanates Diesel Emissions Rubber Plastic RCS LEV

Local Exhaust Ventilation (LEV) Testing

Protecting Worker Health Through Effective Fume and Dust Control Systems

Why LEV Testing Is Essential

Local Exhaust Ventilation (LEV) systems play a critical role in protecting employees from airborne contaminants such as dusts, fumes, vapours, and gases. When not maintained or tested regularly, these systems can fail to provide adequate control, leaving workers at risk and your business vulnerable to non-compliance.

At Sysco Environmental Ltd, we offer comprehensive LEV testing services in accordance with the Control of Substances Hazardous to Health Regulations 2002 (COSHH), helping you to remain fully compliant and safeguard the health of your workforce.


Who Needs LEV Testing?

Any employer who uses an LEV system as a method of controlling employee exposure to airborne hazardous substances is legally required to ensure it is thoroughly examined and tested at least every 14 months by a competent person.

This includes, but is not limited to, operations involving:


What's Included in Our LEV Testing Service

Our LEV inspections are carried out by qualified occupational hygiene professionals, including BOHS P601-certified engineers, in line with HSE's HSG258 guidance.

Each test includes:

  1. Visual examination of the LEV system's physical condition
  2. Airflow and pressure measurements at key points
  3. Capture and transport efficiency assessment
  4. Smoke or dust tracer tests (if appropriate)
  5. Thorough inspection of filters and hoods
  6. Review of system performance against design specifications
  7. Detailed report and compliance certification

Your final report will include actionable recommendations, photographic evidence (if required), test results, and clear guidance on remedial actions, if needed.


Why Choose Sysco Environmental Ltd for Your LEV Survey?


LEV Testing Frequency

Under COSHH Regulation 9, the frequency of testing depends on the type of process:

Process Type Minimum Test Frequency
Metal grinding or welding fumes Every 14 months
Wood dust extraction Every 14 months
Fume cupboards (Laboratories) Every 14 months
Processes involving carcinogens Every 6 months

What Happens If You Don’t Test?

Failure to inspect and maintain LEV systems can result in:

  1. Significant health risks to workers (e.g. occupational asthma, cancer, lung disease)
  2. HSE enforcement actions or improvement notices
  3. Legal liabilities and potential compensation claims
  4. Business disruption due to non-compliance

Get in Touch Today

Book a consultation with our LEV specialists. To discuss your LEV testing requirements or arrange a site visit, contact Sysco Environmental Ltd today. We're here to ensure your ventilation systems are effective, compliant, and keeping your workforce safe.

0800 433 7914
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